soul king

The Soul King is humanoid in physique, with slicked-back dark hair, oval eyes and very thin eyebrows. His eyes are very unusual, each having four black irises.[5][6] He does not have any arms or legs.[7][8] The Soul King is sealed within an unusual barrier that is suspended by four wires in a large, elegant room.The Soul King is not involved in governing Soul Society and never interferes. Most Shinigami have never seen him. To them, he is revered and symbolic, but not present in their lives.The Soul King's sole purpose is to regulate the flow of souls into and out of Soul Society and keep the flow stable. Without the Soul King, the balance is lost and Soul Society, as well as the Dangai, Hueco Mundo, and the Human World, will all collapse into one.[9] According to Yhwach, this results in the unification of life and death and the creation of a world without the fear of death.[10]

ROYAL GUARD

The Royal Guard is a special organization that performs services for the Royal Family. It has a considerable amount of fighting, organizational, and executive power compared to other organizations.

They are also charged with slaying Menos, though the circumstances under which they do so are unknown.

Since serving the royal family is the primary purpose of the Royal Guard, they do not interfere in Gotei 13's affairs and the defense of Soul Society, even against major threats like Aizen and his Arrancar. They are known to do whatever is required by order of the Soul King.

The Royal Guard's authority supersedes the authority of all within Soul Society. Each member of the Royal Guard have had the power of the Ōken imparted onto their bones by the Soul King.They also each have a city of their own at the Soul King Palace.The Royal Guard is known to promote former captains of the Gotei 13 to their ranks.The Royal Guard has no soldiers, and it only has 5 members, all of which are former captains. Their total power far surpasses the power of all the 13 Divisions together. Ichibē Hyōsube is the commanding Shinigami of the Royal Guard.